In this case, Twitter’s partnering with Acxiom and Datalogix. (Twitter previously partnered with Datalogix to track when tweets actually drove offline sales.) Using their data, advertisers will be able to target what Twitter says are more than 1,000 possible audiences.

For example, by using a partner to provide the desired audience, an auto brand can connect with audiences that are in-market for a new car. A CPG company can reach customers that have previously purchased products in their category. And luxury brands can limit campaigns to shoppers who earn a household income above a certain threshold.

Oh, and if you don’t want to be targeted in this way, you can go to you privacy settings and uncheck the box that says “Tailor ads based on information shared by ad partners.”